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dc.contributor.author
Díaz Barradas, Mari Cruz
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Zunzunegui, María
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Álvarez Cansino, Leonor
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Esquivias, Mari Paz
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Collantes, Marta Beatriz
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Cipriotti, Pablo Ariel
dc.date.available
2017-06-05T19:48:07Z
dc.date.issued
2015-12
dc.identifier.citation
Díaz Barradas, Mari Cruz; Zunzunegui, María; Álvarez Cansino, Leonor; Esquivias, Mari Paz; Collantes, Marta Beatriz; et al.; Species-specific effects of the invasive Hieracium pilosella in Magellanic steppe grasslands are driven by nitrogen cycle changes; Springer; Plant And Soil; 397; 1; 12-2015; 175-187
dc.identifier.issn
0032-079X
dc.identifier.uri
http://hdl.handle.net/11336/17519
dc.description.abstract
Aims: The principal objective was to evaluate the interference by the invasive species, H. pilosella, on native grassland species at the physiological performance level. We hypothesised that the invasive species is able to alter the nitrogen uptake of native plant species, and can modify community functioning. Methods: This study was performed under field conditions in the Magellanic Steppe (Argentina). We compared stable isotope signatures, nutrient content and several functional physiological traits in four grassland species with and without H. pilosella interference. Results: We found significant interference effects from the invasive species on native species, mostly through changes in nitrogen uptake. The variation in the natural abundance of foliar δ15N suggests that the native plants switched nitrogen sources due to interference with the exotic species. A linear relationship between chlorophyll and proline content that disappears when species are under H. pilosella interference, suggests major changes in the N allocation of native species. Grassland species under interference with exotic species exhibit lower photochemical efficiency and higher water use efficiency. Canonical discriminant analysis evidenced the existence of a different set of functional traits between invasive and native plants, and also among native species with and without H. pilosella interference. Conclusions: Our results support the hypothesis that H. pilosella exerts intense interference with native species through shifting the N sources available for native species, a lower leaf N content, and increasing water stress.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Acaena Pinnatifida
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Festuca Gracillima
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Hieracium Pilosella L
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Invasive Species
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Native Grassland
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Photochemical Efficiency
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Plant-Plant Interference
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Poa Spiciformis
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Proline
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Stable Isotopes
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Trifolium Repens
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Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Species-specific effects of the invasive Hieracium pilosella in Magellanic steppe grasslands are driven by nitrogen cycle changes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-02T17:32:36Z
dc.identifier.eissn
1573-5036
dc.journal.volume
397
dc.journal.number
1
dc.journal.pagination
175-187
dc.journal.pais
Suiza
dc.description.fil
Fil: Díaz Barradas, Mari Cruz. Universidad de Sevilla; España
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Fil: Zunzunegui, María. Universidad de Sevilla; España
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Fil: Álvarez Cansino, Leonor. University Of Bayreuth; Alemania
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Fil: Esquivias, Mari Paz. Universidad de Sevilla; España
dc.description.fil
Fil: Collantes, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Cipriotti, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.journal.title
Plant And Soil
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11104-015-2608-0
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info:eu-repo/semantics/altIdentifier/doi/https://link.springer.com/article/10.1007%2Fs11104-015-2608-0
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